Fuel vaporizer



July 3l,l 1934.

w. A. MEYER FUEL VAPORI Z ER Filed Aug. 25, 1953 oo.ooo

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ATTORNEY Patented `July 31, 1934 mm1. varoaxzea i william A. Mem, Gummi. Tex. Appummn'aumr 25.1933, semi No. esitate'A ZChims.

The invention relates to a carburetor" and more especially to a fuel vaporizer Vfor internal combustion engines.l t

The primary object of the invention is the prov vision of a device of thischaracter, wherein gasoline 'will be treated prior to its admission to an engine of the internal combustion type for consumption thereby, so that the gasoline' will be y thoroughly vaporized on delivery 'to the engine l0 l and thereby assuring complete combustion and a minimum consumption of fuel.

Another object 'of the invention is the provision of a device of this characten'wherein the construction thereof is novel in form so that a mixing Il of the volatile gases of gasoline or other distillates, employed as fuel for internal combustion engines, with air enables a perfect combustion to be had 'and carbon formation eliminated with less strain on the engine and permits quick starting during .zo cold weather of such engine, there being 'a minimum discharge of obnoxious gases with the exhaust from such engine.

A further object of the invention is the provision of a deviceof this character, which is sim- '25 ple in construction, thoroughly reliable and eilicient in its operation, and inexpensive to manu facture andA install. l f

.With these and other objects in View, the invention consists in the featuresof construction, cornbination and arrangement of parts as will be hereinafter more fully described in detail, illustrated in the accompanying drawing, .which discloses the preferred embodiment of the vinvention, and' pointed out in the claims hereunto apvpended. A

In the accompanying drawing: Figure 1 is a vertical longitudinalsectional view through the device constructed in accordance with .the invention.

Figure 2 is a sectional view on the line 2--2 of Figure 1 looking in the direction of the arrows. Figure 3 is a plan view of the outlet tip for the jet or spray nozzle of the device.

Similar reference characters indicate corresponding parts throughout the several views in the Referring to the drawing in detail,` the device comprises a double columnar body 10, its columns l1 and 12, respectively, beingl joined through an integral web 13 and said body having a closed sol- 4id bottom 14 and an open top closed by a removf able cover plate 15 fastened inplace by screws 16 engaged in' an external top flange 17 -on the body. The web 13 is provided with a vertical passage 18 communicative with the columns 11 and 12l at its lower end through the ports 19 and 20, respecv tively, while said e near its upper end is communicative with the column 12 through port 21. Tapped into the bottom 14 of the bottom 10, centraux or the column 12, is a. reed nipplezz nav-l 00 ing the union 23.

Within this nipple 22 is a fuel supply pipe 24, connected with a gasoline or other distillates tank 25, the supply pipe 24 opening into said tank close .toits bottom. This tank'has a removable filling $5 cap 26 and the said tank is rendered airtight when the cap 26 isl applied thereto.

Arranged in the column 11 superposed are the screens 28 and 29, the latter being in proximity to the bottom A14 of thebody l0, while the screen 28 is located spaced from the cover plate '15. This screen 2B is of fine wire mesh, while the screen 29 is in the form of a perforated-disk. Between the screens 28 and 29 is a filter including the closely arranged upper and lower wire mesh disks 30and I! 3l, respectively, between which are buckshot 32, the screens and filter beingv made fast within the column 11 in any suitable manner. l

Connected with the union 23 is an air intake pipe 33 having the upstanding free end 34. $0

Formed interiorly of the column 12,tspaced above the bottom thereof, is a ledge 35 on which is supported a conical-shaped disk 36 having the radially disposed rows of spaced perforations 37, while formed centrally of said disk, at the center thereof, is a jet or spray nozzle 27, the same being upwardly tapered with the lower open end thereof overhanging the nipple 22, the upper end of said nozzle. 27 being provided with a bladed whirling head 38. Opening through the cover plate 15 into the column 1l of the body 10 is a ,fuel delivery pipe 39 which communicates with the intake manifold of an internal combustion engine. This'pipe 39 is fitted with a hand operated air valve 40, the '95 same also functioning as an automatically operated safety valve for backfire lof the engine. Below the valve 40, next to the cover plate l5 and within the delivery pipe 39, is a check valve 51' which prevents the return of fuel/from the v100 pipe 39 into the column 1l of the body 10, as should be obvious. y

Leading from the column 12 at ailistance above the bottom 14 of the body is a liquid leveling pipe 42 which communicates with the tank 25 near its 105 top, and this pipe 42 functions for thepurpose of breaking the vacuum within the fluid-tight tankl In the operation of the device, on the suction stroke of the Vengine air will be drawn in through become jetted through the nozzle 37 whence it' will pass-through the port 21, passage 18, thence through port 19 and again through the gasoline contained in saidbody 10 in column 11, whence the explosive mixture will pass upwardly through the lter 32 and screen 28 and finally delivered through the pipe 39 in'to the intake manifold of the engine. A thorough vaporlzation will have occurred on the mixing of the air and gasoline and its feed to the delivery pipe 39 for consumption by the engine.

In the use of the device the'engine can be started more readily and quickly in cold weather.

The gasoline within the body 10 is maintained at a determined level consistent with the communication of the pipe 42 with the column 12 of said body while the engine is operating and any .surplus fuel above the level of the pipe 42 would drain back to the tank 25 through the said-pipe, as will be clearly apparent from Figure 1 of the drawing.

. What is claimed is:

1. In a carburetor, a body having separated main and auxiliary mixing chambers side by side and a by-pass therebetween communicating with the main chamber at the top and bottom and the auxiliary chamber at its bottom only, a fuel and air feeding nipple extending through the bottom of the main chamber, a fuel supply tank having communication with said nipple, an air supply pipe having communication with said nipple, a return pipe from the main chamber to the fuel supply tank for lassuring a'determlned depth of fuel within the main and auxiliary chambers, a jetting nozzle overhanging the nipple and having a reticulated cone concentrically of the .same within the main chamber and above the plane ofthe return pipe, and a delivery pipe leading fromf'the auxiliary chamber.

2. In a carburetor, a body having separated main and auxiliary mixing chambers side by side and a by-pass therebetween communicating with the main chamber at the top and bottom and the auxiliary chamber at its bottom only, a fuel and air feeding nipple extending through the bottom of the main chamber, a fuel supply tank having communication with saidI nipple, an air supply pipe having communication with said nipple, a return pipe from the main chamber to the fuel supply tank for assuring a determined depth of -wnmAMAJmYR ias 

